it takes nearly 2 hours to soak my 40 orchids for 20 minutes each (in decorative post, in groups). so i water once a week (weekend, morning), or once in two weeks in winter.
and then i supplement the ones that dry faster, or need to be kept moist by spraying water on the top dressing every couple of days, when needed.
but since i started using the bamboo stick method, i notice that the stick seem to feel moist, even though the media looks dry (light brown), so i may have been watering too much.
anyway, regarding calcium, i can try to add some supplements, or change my fertilizer.
but i wonder, maybe it's a mistake to use rain water and air-conditioner condensation water?
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